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Title: Large single crystal quaternary alloys of IB-IIIA-Se/sub 2/ and methods of synthesizing the same

Abstract

New alloys of Cu/sub x/Ag/sub (1-x)/InSe/sub 2/ (where x ranges between 0 and 1 and preferably has a value of about 0.75) and CuIn/sub y/Ga/sub (1-y)/Se/sub 2/ (where y ranges between 0 and 1 and preferably has a value of about 0.90) in the form of single crystals with enhanced structure perfection, which crystals are substantially free of fissures, are disclosed. Processes are disclosed for preparing the new alloys of Cu/sub x/Ag/sub (1-x)/InSe/sub 2/. The process includes placing stoichiometric quantities of a Cu, Ag, In, and Se reaction mixture or stoichiometric quantities of a Cu, In, Ga, and Se reaction mixture in a refractory crucible in such a manner that the reaction mixture is surrounded by B/sub 2/O/sub 3/, placing the thus loaded crucible in a chamber under a high pressure atmosphere of inert gas to confine the volatile Se to the crucible, and heating the reaction mixture to its melting point. The melt can then be cooled slowly to form, by direct solidification, a single crystal with enhanced structure perfection, which crystal is substantially free of fissures.

Inventors:
Issue Date:
Research Org.:
Solar Energy Research Inst. (SERI), Golden, CO (United States)
OSTI Identifier:
6670901
Application Number:
ON: DE87007197
Assignee:
Dept. of Energy
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER SELENIDES; CHEMICAL PREPARATION; INDIUM SELENIDES; SILVER SELENIDES; BORON OXIDES; MONOCRYSTALS; BORON COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTALS; INDIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SELENIDES; SELENIUM COMPOUNDS; SILVER COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; 360601* - Other Materials- Preparation & Manufacture

Citation Formats

Ciszek, T F. Large single crystal quaternary alloys of IB-IIIA-Se/sub 2/ and methods of synthesizing the same. United States: N. p., 1986. Web.
Ciszek, T F. Large single crystal quaternary alloys of IB-IIIA-Se/sub 2/ and methods of synthesizing the same. United States.
Ciszek, T F. Tue . "Large single crystal quaternary alloys of IB-IIIA-Se/sub 2/ and methods of synthesizing the same". United States.
@article{osti_6670901,
title = {Large single crystal quaternary alloys of IB-IIIA-Se/sub 2/ and methods of synthesizing the same},
author = {Ciszek, T F},
abstractNote = {New alloys of Cu/sub x/Ag/sub (1-x)/InSe/sub 2/ (where x ranges between 0 and 1 and preferably has a value of about 0.75) and CuIn/sub y/Ga/sub (1-y)/Se/sub 2/ (where y ranges between 0 and 1 and preferably has a value of about 0.90) in the form of single crystals with enhanced structure perfection, which crystals are substantially free of fissures, are disclosed. Processes are disclosed for preparing the new alloys of Cu/sub x/Ag/sub (1-x)/InSe/sub 2/. The process includes placing stoichiometric quantities of a Cu, Ag, In, and Se reaction mixture or stoichiometric quantities of a Cu, In, Ga, and Se reaction mixture in a refractory crucible in such a manner that the reaction mixture is surrounded by B/sub 2/O/sub 3/, placing the thus loaded crucible in a chamber under a high pressure atmosphere of inert gas to confine the volatile Se to the crucible, and heating the reaction mixture to its melting point. The melt can then be cooled slowly to form, by direct solidification, a single crystal with enhanced structure perfection, which crystal is substantially free of fissures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {7}
}